Light bulbs having a mean life of 2,400 hours and standard deviation of 62 hours are used for a consignment of 4,200 bulbs. Assume normally distributed. Determine the number of bulbs likely to have a life in excess of 2,500 hrs. а. 220 b. 224 с. 226 d. 228 Determine the percentage of bulbs with life between 2,200 hours to 2,500 hours. a. 94.60 b. 85.60 c. 84.60 d. 95.60 Determine the probability that any bulb will have a life of 2,500(Hint: 2500 is between of 2500.5 and 2499.5) а. 1.65 E-03 b. 1.95 E-03 c. 1.85 E-03 d. 1.75 E-03

Q: x³ + 3x²-2x+6 -x3+x² ↓ 4x² - 2x -4x² ±4x 2x +6 -2x=2 8 Quotient: x2 + 4x + 2 + 8 X-1

A: Given query is to perform long division.

Q: Tomas earns $28 each time he mows the lawn for a neighbor. Tomas mowed 39 lawns in the month of…

A: Tomas earns $28 each time he mows the lawn for a neighbor. Tomas mowed 39 lawns in the month of…

Q: Griffen has 3 less than 2 times as many stickers as Robin. Griffen has 25 stickers. How many does…

A: Please go through the questions word by word. First assume that Robin has x stickers & then…

Q: Luke asks William to play the following number puzzle: Pick a number Add 3 Multiply by 4…

A:

Q: Translate into a variable expression. the product of five and the total of rand five

A: Given variable is r

Q: of and O each stands for a number. The sum of the two numbers is 156. 1 is 8 more than of What…

A: Algebra

Q: together. After losing 5 marbles each, the product of the number of marbles they both have now is…

A: Introduction :

Q: 243 · 7* -1 = 343 · 3*+1

A: The exponent is a positive or negative number that expresses the power to which the quantity is to…

Q: PLEASE SOLVE ON EXCEL. USE ROUNDOFF. THIS IS DIFFERENT DROM OTHER SOLUTIONS: major airline uses an…

A: Histogram VisualizationHistogram: This is a graphical representation of the distribution of…

Q: Maya and Sedra collect 223 cards.Sedra has 45 cards less than 3 times the number of Maya's card.…

A:

Q: For each equation, determine what operation is performed on the variable. (a) x - 2 = 8 The…

A: (a) In the given equation the sign of subtraction is observed between the variable x and 2.

Q: Michael, Perry, Ken and Cole bought for their a dishwasher aunt. Michael paid of what the 1 3 rest…

A: we have to find cost of dishwasher using given data

Q: A store owner want to develop a new snack mix by mixing chocolate and trail mix. How many pounds of…

A: Let pounds of chocolate costing $13.10 per pound be mixed with pounds of trail mix costing $3.80 per…

Q: Divide the following. Show your solution. 2a3 + 5a2  - 2a - 8 / a + 2 =

A: We have to divide the polynomial.

Q: 2. 3x² + 2x³ — 7x² - 4x + 2 = 0

A: Rational Root Test: For a polynomial anxn+an-1xn-1+.......+a0 possible rational roots are pq where p…

Q: + -| X 2 X 1 5x 2

A:

Q: Twelve less than the product of eight and a number is fifty

A: Solution :   Let  x  be  a number

Q: At a bagel shop each bagel sells for $2.00.  It costs $0.75 to make each bagel and the shop has…

A: At a bagel shop each bagel sells for $2.00.  It costs $0.75 to make each bagel and the shop has…